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Utilization of multiple frequencies in 3D nonlinear microwave imaging

P. D. Jensen ; Tonny Rubaek (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; J. J. Mohr
Proceedings of 6th European Conference on Antennas and Propagation, EuCAP 2012. Prague, 26-30 March 2012 p. 1776-1779. (2012)
[Konferensbidrag, refereegranskat]

The use of multiple frequencies in a nonlinear microwave algorithm is considered. Using multiple frequencies allows for obtaining the improved resolution available at the higher frequencies while retaining the regularizing effects of the lower frequencies. However, a number of different challenges arise when using data from multiple frequencies for imaging of biological targets. In this paper, the performance of a multi-frequency algorithm, in which measurement data from several different frequencies are used at once, is compared with a stepped-frequency algorithm, in which images reconstructed at lower frequencies are used as starting guesses for reconstructions at higher frequencies. The performance is illustrated using simulated 2-D data and data obtained with the 3-D DTU microwave imaging system.

Denna post skapades 2012-07-10. Senast ändrad 2016-07-25.
CPL Pubid: 160321


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Institutioner (Chalmers)

Institutionen för signaler och system, Biomedicinsk elektromagnetik


Elektroteknik och elektronik

Chalmers infrastruktur